Looking for the best coarse thread bolts for your next project? We’ve reviewed top-rated kits from trusted brands to help you find the perfect fit for automotive, construction, or DIY tasks.
Coarse thread bolts are essential for strong, reliable connections in any project. Whether you’re working on automotive repairs, construction, or DIY tasks, the right bolts make all the difference. This guide will help you find the best coarse thread bolts for your needs.
We’ve tested and reviewed top-rated kits from trusted brands like M&M Fasteners and Titan Industrial Supply. Each product is chosen for its quality, durability, and ease of use.
Discover organized kits, heavy-duty options, and value packs that save time and money. Get ready to tackle any project with confidence and precision.
List of Top 10 Coarse Thread Bolts
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M&M Fasteners 2,510 Piece Grade 8 Coarse Thread Nut Bolt Hex Bolt & Washer Assortment Kit (Fasteners Only) |
This M&M Fasteners kit is perfect for anyone who needs a reliable, organized supply of high-quality bolts, nuts, and washers. Whether you’re a DIY enthusiast, professional mechanic, or construction worker, this 2,510-piece assortment has you covered. |
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2,510 Piece Grade 5 Coarse Thread Bolts Hex Bolts, Hex Nuts, Lock Washer & Flat Washer Assortment Kit Fasteners Only |
This 2,510-piece fastener kit is perfect for DIY enthusiasts, mechanics, and professionals who need a reliable assortment of grade 5 coarse thread bolts, nuts, and washers. With individually bagged and labeled parts, it’s easy to organize and use for any project. |
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M&M Fasteners 1,250 Piece Grade 8 Coarse Thread Nut Bolt Hex Bolt & Washer Assortment Kit |
This M&M Fasteners kit is perfect for DIY enthusiasts, mechanics, and professionals who need a reliable and organized assortment of high-quality bolts, nuts, and washers. With 1,250 pieces in common sizes, it’s ideal for quick repairs or big projects. |
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Titan Industrial Supply-1275 Piece Grade 8 Coarse Thread Bolt & Nut Drawer Kit-Hex Cap Screws, Hex Nuts, SAE Flat Washers, & SAE Lock Washers. 1/4″, 5/16″, 3/8″ & 1/2″.- Black Metal Drawer |
This Titan Industrial Supply kit is perfect for professionals and DIYers who need a reliable, organized bolt and nut set. It’s ideal for repairs, construction, or machinery work. |
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Titan Industrial Supply-1275 Piece Grade 8 Coarse Thread Metal Drawer Assortment |
This Titan Industrial Supply set is perfect for anyone who needs strong, reliable fasteners. Whether you’re a DIY enthusiast or a professional mechanic, these Grade 8 coarse thread pieces will get the job done. |
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2,510 Piece Grade 8 Coarse Thread Nut Bolt Washer Assortment Kit, Hex Bolts, Hex Nuts, Lock and Flat Washers with Metal Bolt Bin Kit |
This 2,510-piece kit is perfect for anyone who needs a reliable supply of grade 8 fasteners. It’s ideal for mechanics, DIYers, or professionals working on heavy-duty projects. |
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Titan Industrial Supply- 1275 Piece Grade 8 Coarse Thread Fastener Assortment- Hex Cap Screws, Hex Nuts, Flat Washers & Lock Washers-Fasteners Only |
This Titan Industrial Supply fastener assortment is perfect for anyone who needs a reliable supply of high-quality hardware. Whether you’re a DIY enthusiast, a professional contractor, or a maintenance worker, this 1275-piece set has you covered with Grade 8 coarse thread fasteners, including hex cap screws, hex nuts, flat washers, and lock washers. |
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Titan Industrial Supply-1275 Piece Metric 8.8 Coarse Thread Metal Drawer Assortment |
This Titan Industrial Supply set is perfect for anyone who needs a wide range of metric fasteners. Whether you’re a DIY enthusiast, a professional mechanic, or a maintenance worker, this 1,275-piece assortment has you covered with high-quality screws, nuts, and washers in M6, M8, M10, and M12 sizes. |
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1250 Piece Grade 8 Coarse Thread Hex Head Nut, Bolt, & Washer Drawer Assortment |
This 1250-piece assortment is perfect for anyone who needs strong, durable fasteners for heavy-duty projects. It’s ideal for mechanics, DIY enthusiasts, or professionals who want organized, portable storage for Grade 8 coarse thread bolts, nuts, and washers. |
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1/2″-13 x 3 Grade 8 Hex Bolts (4-Pack) with Flat Washers & Nylon Lock Nuts – SAE J429 Coarse Thread Heavy-Duty Bolts for Automotive, Machinery & Construction 3.0″ |
This bolt kit is perfect for pros and serious DIYers who need strong, reliable fasteners. It’s ideal for automotive, machinery, or construction projects where vibration resistance and heavy-duty strength matter most. |
Detailed Reviews
Discover the top 10 Coarse Thread Bolts, handpicked for quality, durability, and value. Whether you need heavy-duty fasteners or a comprehensive kit, this guide has you covered. Find the perfect match for your projects and get the job done right.
1. M&M Fasteners 2,510 Piece Grade 8 Coarse Thread Nut Bolt Hex Bolt & Washer Assortment Kit (Fasteners Only)
The M&M Fasteners 2,510 Piece Kit is a complete assortment of grade 8 coarse thread hardware. It includes hex bolts, nuts, and washers in zinc yellow finish.
This kit offers five common sizes: 1/4, 5/16, 3/8, 7/16, and 1/2. Each piece is individually bagged and labeled for easy organization.
With over 25 years of experience, M&M Fasteners ensures quality and reliability. Their excellent customer service supports every purchase.
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Perfect For:
This M&M Fasteners kit is perfect for anyone who needs a reliable, organized supply of high-quality bolts, nuts, and washers. Whether you’re a DIY enthusiast, professional mechanic, or construction worker, this 2,510-piece assortment has you covered.
Ready to Purchase?
2. 2,510 Piece Grade 5 Coarse Thread Bolts Hex Bolts, Hex Nuts, Lock Washer & Flat Washer Assortment Kit Fasteners Only
This 2,510-piece kit includes grade 5 coarse thread hex bolts, hex nuts, lock washers, and flat washers. It’s a complete assortment for all your fastening needs.
Sizes range from 1/4 to 1/2 inch, covering common projects. Each part is individually bagged and labeled for easy use.
With 25 years of industry experience, this kit ensures quality and reliability. Fasteners only, no storage unit included.
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Perfect For:
This 2,510-piece fastener kit is perfect for DIY enthusiasts, mechanics, and professionals who need a reliable assortment of grade 5 coarse thread bolts, nuts, and washers. With individually bagged and labeled parts, it’s easy to organize and use for any project.
Ready to Purchase?
3. M&M Fasteners 1,250 Piece Grade 8 Coarse Thread Nut Bolt Hex Bolt & Washer Assortment Kit
The M&M Fasteners 1,250 Piece Kit is a complete set of grade 8 coarse thread hardware. It includes hex bolts, nuts, lock washers, and flat washers in four common sizes: 1/4, 5/16, 3/8, and 1/2.
Each piece is individually bagged and labeled for easy use. With over 25 years of experience, M&M Fasteners offers reliable quality and excellent customer service.
| Pros | Cons |
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Perfect For:
This M&M Fasteners kit is perfect for DIY enthusiasts, mechanics, and professionals who need a reliable and organized assortment of high-quality bolts, nuts, and washers. With 1,250 pieces in common sizes, it’s ideal for quick repairs or big projects.
Ready to Purchase?
4. Titan Industrial Supply-1275 Piece Grade 8 Coarse Thread Bolt & Nut Drawer Kit-Hex Cap Screws, Hex Nuts, SAE Flat Washers, & SAE Lock Washers. 1/4″, 5/16″, 3/8″ & 1/2″.- Black Metal Drawer
The Titan Industrial Supply-1275 Piece Kit is a complete solution for all your fastening needs. It includes Grade 8 Coarse Thread bolts, hex nuts, and SAE washers in a durable black metal drawer.
This kit offers 1275 pieces in four sizes: 1/4″, 5/16″, 3/8″, and 1/2″. All parts are yellow zinc coated for long-lasting use.
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Perfect For:
This Titan Industrial Supply kit is perfect for professionals and DIYers who need a reliable, organized bolt and nut set. It’s ideal for repairs, construction, or machinery work.
Ready to Purchase?
5. Titan Industrial Supply-1275 Piece Grade 8 Coarse Thread Metal Drawer Assortment
Titan Industrial Supply offers a 1,275-piece assortment of Grade 8 coarse thread fasteners. This set includes hex cap screws, hex nuts, lock washers, and flat washers in four sizes: 1/4″, 5/16″, 3/8″, and 1/2″. All pieces come in a heavy-duty metal drawer for easy storage.
The fasteners are high quality with a yellow zinc finish. They meet ISO-9001:2015 standards. Certified and reliable, these parts are built to last.
Titan guarantees satisfaction with a 100% money-back promise. With 25 years in business, they stand behind their products. This assortment is perfect for industrial and heavy-duty use.
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Perfect For:
This Titan Industrial Supply set is perfect for anyone who needs strong, reliable fasteners. Whether you’re a DIY enthusiast or a professional mechanic, these Grade 8 coarse thread pieces will get the job done.
Ready to Purchase?
6. 2,510 Piece Grade 8 Coarse Thread Nut Bolt Washer Assortment Kit, Hex Bolts, Hex Nuts, Lock and Flat Washers with Metal Bolt Bin Kit
Organize your workshop with the 2,510 Piece Grade 8 Coarse Thread Nut Bolt Washer Assortment Kit. This comprehensive kit includes everything you need for various projects.
Hex bolts, hex nuts, lock and flat washers are all included in this set. Five common sizes (1/4, 5/16, 3/8, 7/16, 1/2) ensure you have the right fit. 36 compartments keep everything tidy.
Stay organized with the included bolt bin and labels. Grade 8 quality ensures durability and strength for all your projects.
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Perfect For:
This 2,510-piece kit is perfect for anyone who needs a reliable supply of grade 8 fasteners. It’s ideal for mechanics, DIYers, or professionals working on heavy-duty projects.
Ready to Purchase?
7. Titan Industrial Supply- 1275 Piece Grade 8 Coarse Thread Fastener Assortment- Hex Cap Screws, Hex Nuts, Flat Washers & Lock Washers-Fasteners Only
The Titan Industrial Supply 1275-piece set has Grade 8 coarse thread fasteners. It includes hex cap screws, hex nuts, flat washers, and lock washers. All pieces are yellow zinc coated for durability.
This one-size assortment measures 9 x 7 x 5 inches. It’s a reliable choice for industrial and heavy-duty projects.
| Pros | Cons |
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Perfect For:
This Titan Industrial Supply fastener assortment is perfect for anyone who needs a reliable supply of high-quality hardware. Whether you’re a DIY enthusiast, a professional contractor, or a maintenance worker, this 1275-piece set has you covered with Grade 8 coarse thread fasteners, including hex cap screws, hex nuts, flat washers, and lock washers.
Ready to Purchase?
8. Titan Industrial Supply-1275 Piece Metric 8.8 Coarse Thread Metal Drawer Assortment
The Titan Industrial Supply set has 1,275 pieces of metric fasteners. It includes hex cap screws, nuts, and washers. All pieces are high quality and zinc-coated.
This set comes in a heavy-duty metal drawer. It includes M6, M8, M10, and M12 sizes. The coarse thread design ensures strong connections.
The product is ISO-9001:2015 certified. It has a 25-year business guarantee. If unsatisfied, get a 100% money-back refund.
| Pros | Cons |
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Perfect For:
This Titan Industrial Supply set is perfect for anyone who needs a wide range of metric fasteners. Whether you’re a DIY enthusiast, a professional mechanic, or a maintenance worker, this 1,275-piece assortment has you covered with high-quality screws, nuts, and washers in M6, M8, M10, and M12 sizes.
Ready to Purchase?
9. 1250 Piece Grade 8 Coarse Thread Hex Head Nut, Bolt, & Washer Drawer Assortment
This 1250-piece set includes everything you need for your projects. It has hex head cap screws, nuts, and washers. All pieces are Grade 8 Coarse for strong, reliable connections.
The yellow zinc coating adds extra protection. It helps prevent rust and corrosion. This makes the set durable and long-lasting.
A metal drawer with a handle keeps everything organized. It has a latch and plastic divider for easy storage. This makes it portable and convenient for any job.
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Perfect For:
This 1250-piece assortment is perfect for anyone who needs strong, durable fasteners for heavy-duty projects. It’s ideal for mechanics, DIY enthusiasts, or professionals who want organized, portable storage for Grade 8 coarse thread bolts, nuts, and washers.
Ready to Purchase?
10. 1/2″-13 x 3 Grade 8 Hex Bolts (4-Pack) with Flat Washers & Nylon Lock Nuts – SAE J429 Coarse Thread Heavy-Duty Bolts for Automotive, Machinery & Construction 3.0″
Grade 8 hex bolts are heavy-duty and built to last. Each 4-pack includes everything you need: bolts, washers, and nuts. Perfect for strong, vibration-resistant fastening.
These bolts meet top industry standards for strength and quality. The nylon lock nuts and hardened washers ensure a secure hold under tough conditions.
Easy to use, reliable, and ready for any project. Ideal for pros and DIYers alike. Get the job done right every time.
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Perfect For:
This bolt kit is perfect for pros and serious DIYers who need strong, reliable fasteners. It’s ideal for automotive, machinery, or construction projects where vibration resistance and heavy-duty strength matter most.
Ready to Purchase?
Buying Guide
Coarse thread bolts are essential for strong, reliable connections in any project. Whether you’re working on automotive repairs, construction, or DIY tasks, the right bolts make all the difference. This guide will help you find the best coarse thread bolts for your needs.
Choosing the right bolts can save you time, money, and frustration. We’ve tested and reviewed top-rated kits from trusted brands like M&M Fasteners and Titan Industrial Supply. Each product is chosen for its quality, durability, and ease of use.
Here’s what to consider when buying coarse thread bolts:
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Grade:
Grade 8 bolts are stronger and more durable than Grade 5. Choose Grade 8 for heavy-duty projects and Grade 5 for general use. -
Size:
Ensure the bolts come in common sizes like 1/4″, 5/16″, 3/8″, and 1/2″. This covers most projects and saves you from buying extra sizes. -
Coating:
Zinc-coated bolts resist rust and corrosion, making them long-lasting. Look for yellow zinc or metric 8.8 coatings for extra protection. -
Organization:
Kits with labeled compartments or metal drawers keep bolts tidy and easy to find. This saves time and reduces clutter in your workspace. -
Quantity:
Larger kits (like 2,510-piece assortments) are great for pros or frequent users. Smaller kits (like 1,275-piece sets) are ideal for DIYers or occasional use. -
Brand Reputation:
Brands like M&M Fasteners and Titan Industrial Supply have 25+ years of experience. They offer reliable quality and excellent customer service. -
Extras:
Look for kits with washers, nuts, and lock washers included. These extras ensure you have everything you need for a complete job.
With these factors in mind, you’ll find the perfect coarse thread bolts for your projects. Tackle any task with confidence and precision!